Cell fracture producing warped faces
You could try out the Fracture Modifier Build.
Make sure to use the &quot;latest development build&quot;, or just use the more recent graphicall build.
I also had to edit 3 points or so of the greasepencil strokes, because the FM (fracture modifier) created some holes in the mesh there (points were too close to each other)
For the simulation I made the bullet a trigger and the plane animated and triggered. Furthermore I played a bit around with constraints.
If you have further questions, please post either here on stackexchange or here :
https://blenderartists.org/forum/showthread.php?343637-Custom-Build-Blender-Fracture-Modifier